A Light-Year (Ly)is the Distance That Light Travels in One

question 91

Multiple Choice

A light-year (ly) is the distance that light travels in one year.The speed of light is 3.00 × 10⁸ m/s.How many miles are there in 1.00 ly? (1.00 mi = 1.609 km and one year is 365.25 days. )

• A)2.87 × 10¹³ mi
• B)9.46 × 10¹⁵ mi
• C)5.88 × 10¹⁵ mi
• D)9.46 × 10¹² mi
• E)5.88 × 10¹² mi

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